A hierarchical data structure for representing assemblies: part I
Computer-Aided Design
System for interactive assembly modelling
Computer-Aided Design
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Advances in Petri nets 1986, part I on Petri nets: central models and their properties
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IEEE Transactions on Systems, Man and Cybernetics
An assembly modelling system for dynamic and kinematic analysis
Computer-Aided Design
A modeling system for top-down design of assembled products
IBM Journal of Research and Development
A fuzzy Petri net for knowledge representation and reasoning
Information Processing Letters
On geometric assembly planning
On geometric assembly planning
An object-oriented assembly application methodology for PDES/STEP based mechanical systems
An object-oriented assembly application methodology for PDES/STEP based mechanical systems
Petri nets and AI in modeling and simulation
Mathematics and Computers in Simulation - Special issue on mathematical modeling
Petri Net Theory and the Modeling of Systems
Petri Net Theory and the Modeling of Systems
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Parametric and Feature Based CAD/Cam: Concepts, Techniques, and Applications
Knowledge Representation Using Fuzzy Petri Nets
IEEE Transactions on Knowledge and Data Engineering
On the automatic generation of plans for mechanical assembly
On the automatic generation of plans for mechanical assembly
Task sequence planning for robotic assembly
Task sequence planning for robotic assembly
Platform-based product design and development: A knowledge-intensive support approach
Knowledge-Based Systems
Journal of Integrated Design & Process Science - Manufacturing And Design
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Simulating a robotic flexible assembly system with Petri net and fuzzy system
ASM'10 Proceedings of the 4th international conference on Applied mathematics, simulation, modelling
A functional-commercial analysis strategy for product conceptualization
Expert Systems with Applications: An International Journal
A quality-time-cost-oriented strategy for product conceptualization
Advanced Engineering Informatics
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This paper presents a novel knowledge-based Petri net approach to mechanical systems and assemblies modeling within a design with objects environment. A new unified class of object-oriented knowledge Petri nets, which can incorporate a knowledge-based system with ordinary Petri nets, is defined and used for the unified representations of assembly design and modeling. The object knowledge Petri nets, as a graphical language and a new knowledge-based description scheme, can be used to express the qualitative and quantitative aspects of the assembly design and modeling process in an interactive and integrated way. The four-level hierarchy model is proposed and constructed in terms of function-behaviors, structures, geometries, and features. The function-behavior-structure description is built on more abstract concepts so that it can match well top-down design. The static and dynamic characteristics in the design of assembly can also be captured. With the help of fuzzy logic, the incomplete, imprecise knowledge and uncertainty in the design process can also be dealt with. Therefore, the hybrid design object model can incorporate product data model, top-down design process, and assembly process model using an object-oriented, knowledge-based, feature-based, parametric, and constraint-based modeling approach, and can provide a more accurate and more flexible representation. To verify and demonstrate the effective use of the proposed hybrid design object model, a prototype system has been developed. This research provides a knowledge-intensive framework for intelligent assembly design and modeling.